<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			body{
				width: 100%;
			}
			.d1{
				width: 100px;
				height: 100px;
				background-color: red;
				float: right;
				margin-right: -100px;
			}
		</style>
	</head>
	<body>
		<div class="d1"></div>
	</body>
</html>
